Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76173
Type: Artigo de periódico
Title: A NEW ELECTRODE FOR A POLY(PYRROLE)-BASED RECHARGEABLE BATTERY
Author: PERES, RCD
DEPAOLI, MA
PANERO, S
SCROSATI, B
Abstract: The use of dodecylbenzenesulfonate-doped poly(pyrrole) films, PPYDBS, as a secondary battery electrode was studied. The redox and morphologic properties of these films are suitable for battery application. Films were synthesized by electrolysis of pyrrole and sodium dodecylbenzenesulfonate aqueous solutions with a current density of 1.0 mA cm-2 and were switched in LiClO4 1.0 M propylene carbonate solutions (PC) by cyclic voltammetry. In these experiments an apparent diffusion coefficient of 3.7 x 10(-9) cm2 s-1 has been found. Charge/discharge tests at +/- 50, +/- 100, +/- 150 and +/- 200 muA cm-2 were done for a PPYDBS/LiClO4, PC/Li battery. The open-circuit voltage was 3.2 V after 30 h, the specific capacity 53 A h kg-1 and the energy density 154 W h kg-1. These values indicate that this polymer can be used as an electrode in a rechargeable battery.
Country: Suíça
Editor: Elsevier Science Sa Lausanne
Rights: fechado
Identifier DOI: 10.1016/0378-7753(92)80018-7
Date Issue: 1992
Appears in Collections:Unicamp - Artigos e Outros Documentos

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